9999997055 has 8 divisors (see below), whose sum is σ = 12033424800. Its totient is φ = 7977712096.

The previous prime is 9999997043. The next prime is 9999997069. The reversal of 9999997055 is 5507999999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9999997055 - 2⁶ = 9999996991 is a prime.

It is a super-2 number, since 2×9999997055² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9999997055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2783720 + ... + 2787309.

It is an arithmetic number, because the mean of its divisors is an integer number (1504178100).

Almost surely, 2^9999997055 is an apocalyptic number.

9999997055 is a deficient number, since it is larger than the sum of its proper divisors (2033427745).

9999997055 is a wasteful number, since it uses less digits than its factorization.

9999997055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571393.

The product of its (nonzero) digits is 93002175, while the sum is 71.

The square root of 9999997055 is about 99999.9852749989. The cubic root of 9999997055 is about 2154.4344785382.

The spelling of 9999997055 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-seven thousand, fifty-five".